Have we touched at all on how gendered aviation is? It’s just as masculine a world as the military, IMO. Aviation since WW2 has become highly technical, commercial, and regulated - ie, masculine-gendered in more ways than simply flying a plane would indicate. Who knows, maybe the example of the WASPs inspired some subconscious need to reclaim the skies for the organization man.
Besides the technology, flying has a set culture. Male pilots in any sector also tend to be more math/engineering focused, more politically conservative, and more socially conservative than men in the same income brackets. I would imagine female pilots would be the same way vis à vis other women. The culture of danger (real or imagined) also helps inspire a military, ie masculine, style of thinking even when one is not a veteran, and a greater portion are vets than in the general population.